Many of us learned that saying “no” is selfish. In reality, a clear boundary is one of the most respectful things you can offer — to others and to yourself. It tells the truth about what you can give.
Start small and specific
You do not need a dramatic conversation. Begin with one small limit: a reply that waits until morning, an evening that stays yours. Specific boundaries are easier to keep than sweeping ones.
Guilt often shows up at first. That feeling is not proof you did something wrong — it is the discomfort of a new habit. With practice, the guilt fades and the relationship usually grows steadier.